The Zizians have been tied to the killing of U.S. Border Patrol Agent David Maland near the Canadian border in January and five other homicides in Vermont, Pennsylvania and California.

The FBI is investigating a string of killings across the nation possibly linked to a group that one expert says has hallmarks of a strange cult.

Three members of a group linked to six killings, including a U.S. border patrol agent, are arrested in western Maryland